* {
    margin: 0;
    box-sizing: border-box;
}

#app {
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.channel-nav {
    height: 44px;
    overflow-x: auto;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.channel-nav::-webkit-scrollbar {
    display: none;
}

.channel-nav .list {
    display: flex;
}

.channel-nav .item {
    padding: 0 15px;
    height: 44px;
    text-align: center;
    line-height: 44px;
    text-decoration: none;
    font-size: 14px;
    color: #999;
    white-space: nowrap;
    -webkit-tap-highlight-color: transparent;
    position: relative;
    transition: all 0.3s;
}

.channel-nav .item::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0px;
    height: 2px;
    border-radius: 1px;
    background-color: coral;
    transform: translateX(-50%);
    transition: all 0.3s;
}

.channel-nav .item.active::after {
    width: 24px;
}

.channel-nav .item.active {
    color: #333;
    font-size: 18px;
}

.article-list {
    flex: 1;
    overflow-y: auto;
    padding: 0 15px;
}

.article-item {
    padding: 15px 0;
    border-bottom: 0.5px solid rgba(0, 0, 0, .07);
}

.article-item .title {
    width: 100%;
    margin: 0;
    line-height: 22px;
    font-size: 16px;
    color: #333;
    margin-bottom: 8px;
    max-height: 44px;
    display: -webkit-box;
    overflow: hidden;
    text-overflow: ellipsis;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.article-item .img {
    width: 30%;
    height: 74px;
    border-radius: 4px;
    margin-bottom: 8px;
    margin-right: 3%;
}

.article-item .info {
    width: 100%;
    color: #a5a6ab;
    font-size: 12px;
    position: relative;
}

.article-item .info span {
    margin-right: 12px;
}